Condensed Consolidated Guarantor Financial Information (Schedule Of Condensed Consolidating Statements Of Income) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 01, 2012	Mar. 27, 2011
Net revenues	$ 387,757	$ 354,004
Cost of goods sold	201,922	189,500
Gross profit	185,835	164,504
Selling, general and administrative expenses	113,378	103,206
Research and development expenses	11,562	11,038
Goodwill impairment	332,128
Restructuring and other impairment charges	(838)	595
Income (loss) from continuing operations before interest and taxes	(270,395)	49,665
Interest expense	18,211	16,146
Interest income	(478)	(105)
Loss on extinguishments of debt		14,597
Income (loss) from continuing operations before taxes	(288,128)	19,027
Taxes (benefit) on income from continuing operations	(4,019)	4,915
Income (loss) from continuing operations	(284,109)	14,112
Operating income from discontinued operations	946	63,756
Taxes on income from discontinued operations	345	(326)
Income from discontinued operations	601	64,082
Net income (loss)	(283,508)	78,194
Less: Income from continuing operations attributable to noncontrolling interest	227	223
Less: Income from discontinued operations attributable to noncontrolling interest		159
Net income (loss) attributable to common shareholders	(283,735)	77,812
Parent Company [Member]
Selling, general and administrative expenses	15,582	9,389
Income (loss) from continuing operations before interest and taxes	(15,582)	(9,389)
Interest expense	36,749	31,084
Interest income	(125)	(2)
Loss on extinguishments of debt		14,597
Income (loss) from continuing operations before taxes	(52,206)	(55,068)
Taxes (benefit) on income from continuing operations	(17,921)	(19,067)
Equity in net income of consolidated subsidiaries	(250,051)	135,081
Income (loss) from continuing operations	(284,336)	99,080
Operating income from discontinued operations	946	(37,944)
Taxes on income from discontinued operations	345	(16,676)
Income from discontinued operations	601	(21,268)
Net income (loss)	(283,735)	77,812
Net income (loss) attributable to common shareholders	(283,735)	77,812
Guarantor Subsidiaries [Member]
Net revenues	245,687	226,826
Cost of goods sold	147,525	137,422
Gross profit	98,162	89,404
Selling, general and administrative expenses	63,168	59,465
Research and development expenses	9,916	9,384
Goodwill impairment	331,779
Restructuring and other impairment charges	(1,443)	588
Income (loss) from continuing operations before interest and taxes	(305,258)	19,967
Interest expense	(20,451)	(15,013)
Interest income	(8)	(23)
Income (loss) from continuing operations before taxes	(284,799)	35,003
Taxes (benefit) on income from continuing operations	287	13,861
Equity in net income of consolidated subsidiaries	30,996	73,039
Income (loss) from continuing operations	(254,090)	94,181
Operating income from discontinued operations		39,411
Taxes on income from discontinued operations		6,331
Income from discontinued operations		33,080
Net income (loss)	(254,090)	127,261
Net income (loss) attributable to common shareholders	(254,090)	127,261
Non-Guarantor Subsidiaries [Member]
Net revenues	204,921	181,858
Cost of goods sold	115,287	106,534
Gross profit	89,634	75,324
Selling, general and administrative expenses	34,971	33,696
Research and development expenses	1,646	1,654
Goodwill impairment	349
Restructuring and other impairment charges	605	7
Income (loss) from continuing operations before interest and taxes	52,063	39,967
Interest expense	1,913	75
Interest income	(345)	(80)
Income (loss) from continuing operations before taxes	50,495	39,972
Taxes (benefit) on income from continuing operations	13,897	11,475
Income (loss) from continuing operations	36,598	28,497
Operating income from discontinued operations		62,289
Taxes on income from discontinued operations		10,019
Income from discontinued operations		52,270
Net income (loss)	36,598	80,767
Less: Income from continuing operations attributable to noncontrolling interest	227	223
Less: Income from discontinued operations attributable to noncontrolling interest		159
Net income (loss) attributable to common shareholders	36,371	80,385
Eliminations [Member]
Net revenues	(62,851)	(54,680)
Cost of goods sold	(60,890)	(54,456)
Gross profit	(1,961)	(224)
Selling, general and administrative expenses	(343)	656
Income (loss) from continuing operations before interest and taxes	(1,618)	(880)
Income (loss) from continuing operations before taxes	(1,618)	(880)
Taxes (benefit) on income from continuing operations	(282)	(1,354)
Equity in net income of consolidated subsidiaries	219,055	(208,120)
Income (loss) from continuing operations	217,719	(207,646)
Net income (loss)	217,719	(207,646)
Net income (loss) attributable to common shareholders	$ 217,719	$ (207,646)